1. The command can be used to create empty files with a one line command. 2. The command is used to broadcast messages to everyone currently logged onto the system. 3. What is apt-get used for? 4. Write the command line you would use to give the owner of the file mydata full rights and read only permission to everyone else. 5. What command allows you to log in under another user id? 6. What command do you use to get input from the user? 7. What command would allow you to determine what programs were eating up the most CPU time? 8. A user on your network has received an error message stating that another user has the same IP address as they do. You need to have the users tell you what their IP address is. What command should they use? 9. What command do you use to print the environmental variables to the screen? 10. Give an example of how to run a script or command in the background.